Alto HPA4 Headphone Amplifiers

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Alto HPA4 Headphone Amplifiers
The Alto HPA4 4-Channel Stereo Headphone Amplifier is a professional headphone amplifier system for studio and stage applications. This universal, multi-purpose device features 4 independent high-power stereo amplifiers in one rack unit, and delivers maximum audio quality - even at high volume levels. No studio should be without the HPA4 or its 6-channel sister model, the HPA6.

HPA4 Features Professional, universal headphone amplification system for studio and live sound applications 4 independent stereo high-power amplifiers in 1U rack unit Maximum audio quality - even at high volume levels 4 independent input/mix sections for 4 stereo mixes Stereo AUX IN per channel for additional signal source OUTPUT LEVEL control per channel MONO and LEFT/RIGHT MUTE buttons per channel for additional flexibility 3 headphone outputs per channel on front (1) and rear (2) panels Precision 8-segment LED output level display per channel DIRECT IN on the front panel for additional stereo signal sources Bass and Treble controls on each channel Servo-balanced, gold-plated XLR and 1/4" TRS connectors High-quality components and exceptionally rugged construction ensure durability Internal power supply

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